503-8779-003

View detailed technical data, stock status, and sourcing information for: 503-8779-003
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5355 Knobs and Pointers

National Stock Number

5355-00-644-2139

Item Name Code

03263

Assigment Date

01/01/1963 (63 years ago)

0.188 inches nominal inside diameter, straight shank style, 0.187 inches nominal shank length, 1 setscrew hole quantity, 0.375 inches nominal shank diameter

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Inside Diameter: 0.188 inches nominal
Shank Length: 0.187 inches nominal
Shank Diameter: 0.375 inches nominal
Shank Style: straight
Setscrew Hole Quantity: 1
Distance From Hole Center To Knob/Skirt Base: 0.109 inches nominal
Overall Depth: 0.219 inches nominal
Gripping Surface Condition: grip aid
Shaft Accommodation Style: round
Outside Diameter: 0.438 inches maximum
Reference Marking: lock and arrow
Attachment Method: setscrews
Overall Thickness: 0.344 inches nominal
Screw Drive Type: cross recess type 1
Thread Quantity Per Inch: 32 screw hole
Nominal Thread Size: 0.138 inches screw hole
Material: aluminum alloy
Style Designator: round
Thread Series Designator: unc screw hole

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5355-00-579-6383	No Name Available	01/20/1966
5355-00-667-9213	No Name Available	12/12/1965
5355-00-667-9727	No Name Available	12/21/1965
5355-00-668-9442	No Name Available	07/20/1967

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
354A6021	Knob
503-8779-003	Knob

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5355-00-644-2139?

The FSCG of the NSN 5355-00-644-2139 is 5355

Does the NSN 5355-00-644-2139 have a Schedule B code assigned?

Yes, the Schedule B code is 8531900002

Does NSN 5355-00-644-2139 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 5355-00-644-2139 contain precious materials?

Precious metal content is unknown

Does NSN 5355-00-644-2139 contain hazardous materials?

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

When the NSN 5355-00-644-2139 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963